blocks|key|2059176|text|删除所有非点/数字：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059177|var+currency+=+"-$4,400.50";
var+number+=+Number(currency.replace(/[%5E0-9.-]%2B/g,""));|code-block|syntax|javascript|2059178|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Remove all non dot / digits:

<pre><code>var currency = "-$4,400.50";
var number = Number(currency.replace(/[^0-9.-]+/g,""));
</code></pre>

blocks|key|1845025|text|使用正则表达式删除格式(美元和逗号)，并使用parseFloat将字符串转换为浮点数。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1845026|var+currency+=+"$1,100.00";
currency.replace(/[$,]%2B/g,"");
var+result+=+parseFloat(currency)+%2B+.05;|code-block|syntax|javascript|1845027|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use a regex to remove the formating (dollar and comma), and use parseFloat to convert the string to a floating point number.`

<pre><code>var currency = "$1,100.00";
currency.replace(/[$,]+/g,"");
var result = parseFloat(currency) + .05;
</code></pre>

blocks|key|2059324|text|accounting.js是最好的选择。我在一个项目中使用了它，并且有非常好的使用经验。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2059325|accounting.formatMoney(4999.99,+"€",+2,+".",+",");+//+€4.999,99
accounting.unformat("€+1.000.000,00",+",");+//+1000000|code-block|syntax|javascript|2059326|你可以在GitHub上找到它|2059327|entityMap|0|LINK|mutability|MUTABLE|url|https://openexchangerates.github.io/accounting.js/|1|https://github.com/openexchangerates/accounting.js^0|0|D|0|0|0|4|6|1|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

<a href="https://openexchangerates.github.io/accounting.js/" rel="noreferrer">accounting.js</a> is the way to go. I used it at a project and had very good experience using it.

<pre><code>accounting.formatMoney(4999.99, "€", 2, ".", ","); // €4.999,99
accounting.unformat("€ 1.000.000,00", ","); // 1000000
</code></pre>

You can find it at <a href="https://github.com/openexchangerates/accounting.js" rel="noreferrer">GitHub</a>

blocks|key|2059260|text|我知道这是一个老生常谈的问题，但我想给你一个额外的选择。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059261|jQuery全球化提供了将特定于区域性的格式解析为浮点型的能力。|2059262|https://github.com/jquery/globalize|offset|length|2059263|给定字符串"$13,042.00"，并将Globalize设置为en-US：|2059264|Globalize.culture("en-US");|code-block|syntax|javascript|2059265|您可以像这样解析浮点值：|2059266|var+result+=+Globalize.parseFloat(Globalize.format("$13,042.00",+"c"));|2059267|这将为您提供：|2059268|13042.00|2059269|并允许您使用其他文化。|2059270|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|Z|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|16|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|17|8|@]|9|@$F|18|G|19|1|1A]]|A|$]]|$1|H|3|I|5|6|7|1B|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1C|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1D|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1E|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|1F|8|@]|9|@]|A|$]]|$1|U|3|V|5|L|7|1G|8|@]|9|@]|A|$M|N]]|$1|W|3|X|5|6|7|1H|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|Z|$10|$5|11|12|13|A|$14|E]]]]

I know this is an old question but wanted to give an additional option. 

The jQuery Globalize gives the ability to parse a culture specific format to a float. 

<a href="https://github.com/jquery/globalize" rel="noreferrer">https://github.com/jquery/globalize</a>

Given a string "$13,042.00", and Globalize set to en-US:

<pre><code>Globalize.culture("en-US");
</code></pre>

You can parse the float value out like so:

<pre><code>var result = Globalize.parseFloat(Globalize.format("$13,042.00", "c"));
</code></pre>

This will give you:

<pre><code>13042.00
</code></pre>

And allows you to work with other cultures.

blocks|key|2059344|text|这个例子运行正常。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059345|​|2059346|var+currency+=+"$1,123,456.00";
var+number+=+Number(currency.replace(/[%5E0-9\.]%2B/g,""));
console.log(number);|code-block|syntax|javascript|2059347|2059348|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

This example run ok
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>var currency = "$1,123,456.00";
var number = Number(currency.replace(/[^0-9\.]+/g,""));
console.log(number);</code></pre>
</div>
</div>

blocks|key|2059541|text|//+"10.000.500,61+TL“price_to_number+=>+10000500.61|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059542|//+"10000500.62“number_to_price+=>+10.000.500,62|2059543|JS小提琴：https://jsfiddle.net/Limitlessisa/oxhgd32c/|offset|length|2059544|var+price="10.000.500,61+TL";
document.getElementById("demo1").innerHTML+=+price_to_number(price);

var+numberPrice="10000500.62";
document.getElementById("demo2").innerHTML+=+number_to_price(numberPrice);

function+price_to_number(v){
++++if(!v){return+0;}
++++v=v.split('.').join('');
++++v=v.split(',').join('.');
++++return+Number(v.replace(/[%5E0-9.]/g,+""));
}

function+number_to_price(v){
++++if(v==0){return+'0,00';}
++++v=parseFloat(v);
++++v=v.toFixed(2).replace(/(\d)(?=(\d\d\d)%2B(?!\d))/g,+"$1,");
++++v=v.split('.').join('*').split(',').join('.').split('*').join(',');
++++return+v;
}|code-block|syntax|javascript|2059545|entityMap|0|LINK|mutability|MUTABLE|url|https://jsfiddle.net/Limitlessisa/oxhgd32c/^0|0|0|6|17|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@$F|X|G|Y|1|Z]]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

// "10.000.500,61 TL" price_to_number => 10000500.61

// "10000500.62" number_to_price => 10.000.500,62

JS FIDDLE: <a href="https://jsfiddle.net/Limitlessisa/oxhgd32c/" rel="noreferrer">https://jsfiddle.net/Limitlessisa/oxhgd32c/</a>

<pre><code>var price="10.000.500,61 TL";
document.getElementById("demo1").innerHTML = price_to_number(price);

var numberPrice="10000500.62";
document.getElementById("demo2").innerHTML = number_to_price(numberPrice);

function price_to_number(v){
 if(!v){return 0;}
 v=v.split('.').join('');
 v=v.split(',').join('.');
 return Number(v.replace(/[^0-9.]/g, ""));
}

function number_to_price(v){
 if(v==0){return '0,00';}
 v=parseFloat(v);
 v=v.toFixed(2).replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
 v=v.split('.').join('*').split(',').join('.').split('*').join(',');
 return v;
}
</code></pre>

blocks|key|2059009|text|你可以试试这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059010|​|2059011|var+str+=+"$1,112.12";
str+=+str.replace(",",+"");
str+=+str.replace("$",+"");
console.log(parseFloat(str));|code-block|syntax|javascript|2059012|2059013|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

You can try this

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>var str = "$1,112.12";
str = str.replace(",", "");
str = str.replace("$", "");
console.log(parseFloat(str));</code></pre>
</div>
</div>

blocks|key|2059517|text|这是我的功能。适用于所有货币..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2059518|function+toFloat(num)+{
++++dotPos+=+num.indexOf('.');
++++commaPos+=+num.indexOf(',');

++++if+(dotPos+<+0)
++++++++dotPos+=+0;

++++if+(commaPos+<+0)
++++++++commaPos+=+0;

++++if+((dotPos+>+commaPos)+&&+dotPos)
++++++++sep+=+dotPos;
++++else+{
++++++++if+((commaPos+>+dotPos)+&&+commaPos)
++++++++++++sep+=+commaPos;
++++++++else
++++++++++++sep+=+false;
++++}

++++if+(sep+==+false)
++++++++return+parseFloat(num.replace(/[%5E\d]/g,+""));

++++return+parseFloat(
++++++++num.substr(0,+sep).replace(/[%5E\d]/g,+"")+%2B+'.'+%2B+
++++++++num.substr(sep%2B1,+num.length).replace(/[%5E0-9]/,+"")
++++);

}|code-block|syntax|javascript|2059519|用法：toFloat("$1,100.00")或toFloat("1,100.00$")|offset|length|style|CODE|2059520|entityMap^0|0|0|3|K|O|K|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

This is my function. Works with all currencies..

<pre><code>function toFloat(num) {
 dotPos = num.indexOf('.');
 commaPos = num.indexOf(',');

 if (dotPos &lt; 0)
 dotPos = 0;

 if (commaPos &lt; 0)
 commaPos = 0;

 if ((dotPos &gt; commaPos) &amp;&amp; dotPos)
 sep = dotPos;
 else {
 if ((commaPos &gt; dotPos) &amp;&amp; commaPos)
 sep = commaPos;
 else
 sep = false;
 }

 if (sep == false)
 return parseFloat(num.replace(/[^\d]/g, ""));

 return parseFloat(
 num.substr(0, sep).replace(/[^\d]/g, "") + '.' + 
 num.substr(sep+1, num.length).replace(/[^0-9]/, "")
 );

}
</code></pre>

Usage : <code>toFloat("$1,100.00")</code> or <code>toFloat("1,100.00$")</code>

blocks|key|2058973|text|我知道你已经找到了你的问题的解决方案，我只是想推荐你看看下面更广泛的国际号码格式的jQuery插件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2058974|International+Number+Formatter|offset|length|2058975|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/jquery-numberformatter/^0|0|0|U|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

I know you've found a solution to your question, I just wanted to recommend that maybe you look at the following more extensive jQuery plugin for International Number Formats:

<a href="http://code.google.com/p/jquery-numberformatter/" rel="nofollow noreferrer">International Number Formatter</a>

blocks|key|2059384|text|jQuery.preferCulture("en-IN");
var+price+=+jQuery.format(39.00,+"c");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2059385|输出为:+Rs。39.00|unstyled|2059386|use+jquery.glob.js,
++++jQuery.glob.all.js|2059387|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>jQuery.preferCulture("en-IN");
var price = jQuery.format(39.00, "c");
</code></pre>

output is: Rs. 39.00

<pre><code>use jquery.glob.js,
 jQuery.glob.all.js
</code></pre>

blocks|key|2060172|text|let+thousands_seps+=+'.';
let+decimal_sep+=+',';

let+sanitizeValue+=+"R$+2.530,55".replace(thousands_seps,'')
+++++++++++++++++++++++++.replace(decimal_sep,'.')
+++++++++++++++++++++++++.replace(/[%5E0-9.-]%2B/,+'');

//+Converting+to+float
//+Result+2530.55
let+stringToFloat+=+parseFloat(sanitizeValue);


//+Formatting+for+currency:+"R$+2.530,55"
//+BRL+in+this+case
let+floatTocurrency+=+Number(stringToFloat).toLocaleString('pt-BR',+{style:+'currency',+currency:+'BRL'});

//+Output
console.log(stringToFloat,+floatTocurrency);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2060173|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>let thousands_seps = '.';
let decimal_sep = ',';

let sanitizeValue = &quot;R$ 2.530,55&quot;.replace(thousands_seps,'')
 .replace(decimal_sep,'.')
 .replace(/[^0-9.-]+/, '');

// Converting to float
// Result 2530.55
let stringToFloat = parseFloat(sanitizeValue);


// Formatting for currency: &quot;R$ 2.530,55&quot;
// BRL in this case
let floatTocurrency = Number(stringToFloat).toLocaleString('pt-BR', {style: 'currency', currency: 'BRL'});

// Output
console.log(stringToFloat, floatTocurrency);
</code></pre>

blocks|key|2060272|text|简单地说|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2060273|Number(currency.replace(/[%5E0-9-]%2B/g,""))/100;|code-block|syntax|javascript|2060274|适用于所有货币和区域设置。替换所有非数字字符(可以是欧元50.000，00或$50,000.00)输入必须有两个小数位|2060275|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

How about simply
<pre><code>Number(currency.replace(/[^0-9-]+/g,&quot;&quot;))/100;
</code></pre>
Works with all currencies and locales. replaces all non-numeric chars (you can have €50.000,00 or $50,000.00) input must have 2 decimal places

blocks|key|1845791|text|这对我很有效，涵盖了大多数边缘情况:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1845792|function+toFloat(num)+{
++const+cleanStr+=+String(num).replace(/[%5E0-9.,]/g,+'');
++let+dotPos+=+cleanStr.indexOf('.');
++let+commaPos+=+cleanStr.indexOf(',');

++if+(dotPos+<+0)+dotPos+=+0;

++if+(commaPos+<+0)+commaPos+=+0;

++const+dotSplit+=+cleanStr.split('.');
++const+commaSplit+=+cleanStr.split(',');

++const+isDecimalDot+=+dotPos
++++&&+(
++++++(commaPos+&&+dotPos+>+commaPos)
++++++%7C%7C+(!commaPos+&&+dotSplit[dotSplit.length+-+1].length+===+2)
++++);

++const+isDecimalComma+=+commaPos
++++&&+(
++++++(dotPos+&&+dotPos+<+commaPos)
++++++%7C%7C+(!dotPos+&&+commaSplit[commaSplit.length+-+1].length+===+2)
++++);

++let+integerPart+=+cleanStr;
++let+decimalPart+=+'0';
++if+(isDecimalComma)+{
++++integerPart+=+commaSplit[0];
++++decimalPart+=+commaSplit[1];
++}
++if+(isDecimalDot)+{
++++integerPart+=+dotSplit[0];
++++decimalPart+=+dotSplit[1];
++}

++return+parseFloat(
++++`${integerPart.replace(/[%5E0-9]/g,+'')}.${decimalPart.replace(/[%5E0-9]/g,+'')}`,
++);
}|code-block|syntax|javascript|1845793|toFloat('USD+1,500.00');+//+1500
toFloat('USD+1,500');+//+1500
toFloat('USD+500.00');+//+500
toFloat('USD+500');+//+500

toFloat('EUR+1.500,00');+//+1500
toFloat('EUR+1.500');+//+1500
toFloat('EUR+500,00');+//+500
toFloat('EUR+500');+//+500|1845794|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This worked for me and covers most edge cases :)

<pre class="lang-js prettyprint-override"><code>function toFloat(num) {
 const cleanStr = String(num).replace(/[^0-9.,]/g, '');
 let dotPos = cleanStr.indexOf('.');
 let commaPos = cleanStr.indexOf(',');

 if (dotPos &lt; 0) dotPos = 0;

 if (commaPos &lt; 0) commaPos = 0;

 const dotSplit = cleanStr.split('.');
 const commaSplit = cleanStr.split(',');

 const isDecimalDot = dotPos
 &amp;&amp; (
 (commaPos &amp;&amp; dotPos &gt; commaPos)
 || (!commaPos &amp;&amp; dotSplit[dotSplit.length - 1].length === 2)
 );

 const isDecimalComma = commaPos
 &amp;&amp; (
 (dotPos &amp;&amp; dotPos &lt; commaPos)
 || (!dotPos &amp;&amp; commaSplit[commaSplit.length - 1].length === 2)
 );

 let integerPart = cleanStr;
 let decimalPart = '0';
 if (isDecimalComma) {
 integerPart = commaSplit[0];
 decimalPart = commaSplit[1];
 }
 if (isDecimalDot) {
 integerPart = dotSplit[0];
 decimalPart = dotSplit[1];
 }

 return parseFloat(
 `${integerPart.replace(/[^0-9]/g, '')}.${decimalPart.replace(/[^0-9]/g, '')}`,
 );
}

</code></pre>

<pre class="lang-js prettyprint-override"><code>toFloat('USD 1,500.00'); // 1500
toFloat('USD 1,500'); // 1500
toFloat('USD 500.00'); // 500
toFloat('USD 500'); // 500

toFloat('EUR 1.500,00'); // 1500
toFloat('EUR 1.500'); // 1500
toFloat('EUR 500,00'); // 500
toFloat('EUR 500'); // 500
</code></pre>

blocks|key|1845389|text|++++$+150.00
++++Fr.+150.00
++++€+689.00|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1845390|我已经测试了上面三个货币符号，.You也可以为其他人做。|unstyled|1845391|++++var+price+=+Fr.+150.00;
++++var+priceFloat+=+price.replace(/[%5E\d\.]/g,+'');|1845392|上面的正则表达式将删除所有不是数字或period.So的内容，您可以获得不带货币符号的字符串，但在“Fr.+150.00”的情况下，如果您通过控制台进行输出，那么您将获得的价格为|1845393|++++console.log('priceFloat+:+'%2BpriceFloat);

++++output+will+be+like++priceFloat+:+.150.00|1845394|这是错误的，因此您可以检查“”的索引。然后对其进行拆分，得到正确的结果。|1845395|++++if+(priceFloat.indexOf('.')+==+0)+{
++++++++++++priceFloat+=+parseFloat(priceFloat.split('.')[1]);
++++}else{
++++++++++++priceFloat+=+parseFloat(priceFloat);
++++}|1845396|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|T|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$B|C]]|$1|M|3|N|5|F|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$B|C]]|$1|Q|3|-4|5|F|7|Z|8|@]|9|@]|A|$]]]|R|$]]

<pre><code> $ 150.00
 Fr. 150.00
 € 689.00
</code></pre>

I have tested for above three currency symbols .You can do it for others also.

<pre><code> var price = Fr. 150.00;
 var priceFloat = price.replace(/[^\d\.]/g, '');
</code></pre>

Above regular expression will remove everything that is not a digit or a period.So You can get the string without currency symbol but in case of " Fr. 150.00 " if you console for output then you will get price as

<pre><code> console.log('priceFloat : '+priceFloat);

 output will be like priceFloat : .150.00
</code></pre>

which is wrong so you check the index of "." then split that and get the proper result.

<pre><code> if (priceFloat.indexOf('.') == 0) {
 priceFloat = parseFloat(priceFloat.split('.')[1]);
 }else{
 priceFloat = parseFloat(priceFloat);
 }
</code></pre>

blocks|key|1845560|text|function+NumberConvertToDecimal+(number)+{
++++if+(number+==+0)+{
+++++++return+'0.00';+
++++}
++++number+=+parseFloat(number);
++++number+=+number.toFixed(2).replace(/(\d)(?=(\d\d\d)%2B(?!\d))/g,+"$1");
++++number+=+number.split('.').join('*').split('*').join('.');
++++return+number;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1845561|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>function NumberConvertToDecimal (number) {
 if (number == 0) {
 return '0.00'; 
 }
 number = parseFloat(number);
 number = number.toFixed(2).replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1");
 number = number.split('.').join('*').split('*').join('.');
 return number;
}
</code></pre>

blocks|key|2059668|text|var+parseCurrency+=+function+(e)+{
++++if+(typeof+(e)+===+'number')+return+e;
++++if+(typeof+(e)+===+'string')+{
++++++++var+str+=+e.trim();
++++++++var+value+=+Number(e.replace(/[%5E0-9.-]%2B/g,+""));
++++++++return+str.startsWith('(')+&&+str.endsWith(')')+?+-value:+value;
++++}

++++return+e;
}+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2059669|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var parseCurrency = function (e) {
 if (typeof (e) === 'number') return e;
 if (typeof (e) === 'string') {
 var str = e.trim();
 var value = Number(e.replace(/[^0-9.-]+/g, ""));
 return str.startsWith('(') &amp;&amp; str.endsWith(')') ? -value: value;
 }

 return e;
} 
</code></pre>

blocks|key|1845724|text|无论使用哪种语言环境和货币设置，此函数都应有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1845725|function+getNumPrice(price,+decimalpoint)+{
++++var+p+=+price.split(decimalpoint);
++++for+(var+i=0;i<p.length;i%2B%2B)+p[i]+=+p[i].replace(/\D/g,'');
++++return+p.join('.');
}|code-block|syntax|javascript|1845726|这里假设您知道小数点字符(在我的例子中，区域设置是从PHP中设置的，所以我使用<?php+echo+cms_function_to_get_decimal_point();+?>获取它)。|offset|length|style|CODE|1845727|entityMap^0|0|0|13|1E|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This function should work whichever the locale and currency settings :

<pre><code>function getNumPrice(price, decimalpoint) {
 var p = price.split(decimalpoint);
 for (var i=0;i&lt;p.length;i++) p[i] = p[i].replace(/\D/g,'');
 return p.join('.');
}
</code></pre>

This assumes you know the decimal point character (in my case the locale is set from PHP, so I get it with <code>&lt;?php echo cms_function_to_get_decimal_point(); ?&gt;</code>).

blocks|key|1845894|text|下面是一个简单的函数-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1845895|​|1845896|function+getNumberFromCurrency(currency)+{
++return+Number(currency.replace(/[$,]/g,''))
}

console.log(getNumberFromCurrency('$1,000,000.99'))+//+1000000.99|code-block|syntax|javascript|1845897|1845898|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

Here's a simple function -
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>function getNumberFromCurrency(currency) {
 return Number(currency.replace(/[$,]/g,''))
}

console.log(getNumberFromCurrency('$1,000,000.99')) // 1000000.99</code></pre>
</div>
</div>

blocks|key|1846045|text|如此令人头疼，因此对其他文化的考虑就更少了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1846046|下面是各位朋友：|1846047|let+floatPrice+=+parseFloat(price.replace(/(,%7C\.)([0-9]{3})/g,'$2').replace(/(,%7C\.)/,'.'));|code-block|syntax|javascript|1846048|就这么简单。|1846049|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Such a headache and so less consideration to other cultures for nothing...
here it is folks:
<pre class="lang-js prettyprint-override"><code>let floatPrice = parseFloat(price.replace(/(,|\.)([0-9]{3})/g,'$2').replace(/(,|\.)/,'.'));
</code></pre>
as simple as that.

I have a text box that will have a currency string in it that I then need to convert that string to a double to perform some operations on it. 

<code>"$1,100.00"</code> → <code>1100.00</code>

This needs to occur all client side. I have no choice but to leave the currency string as a currency string as input but need to cast/convert it to a double to allow some mathematical operations.

How to convert a currency string to a double with jQuery or Javascript?

jQuery

我有一个文本框，其中包含一个货币字符串，然后我需要将该字符串转换为双精度值，以便对其执行一些操作。"$1,100.00"→1100.00这需要发生在所有客户端。我别无选择，只能将货币字符串保留为货币字符串作为输入，但需要将其强制转换/转换为双精度值，以便进行一些数学运算。

问如何使用jQuery或Javascript将货币字符串转换为双精度？
EN

回答 19

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问如何使用jQuery或Javascript将货币字符串转换为双精度？EN

回答 19

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问如何使用jQuery或Javascript将货币字符串转换为双精度？
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