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    <pre class="lang-js prettyprint-override"><code>str = str.replace(/abc/g, ''); </code></pre> <p>In response to comment:</p> <pre class="lang-js prettyprint-override"><code>var find = 'abc'; var re = new RegExp(find, 'g'); str = str.replace(re, ''); </code></pre> <p>In response to <a href="https://stackoverflow.com/users/49153/click-upvote">Click Upvote</a>'s comment, you could simplify it even more:</p> <pre class="lang-js prettyprint-override"><code>function replaceAll(str, find, replace) { return str.replace(new RegExp(find, 'g'), replace); } </code></pre> <p><strong>Note:</strong> Regular expressions contain special (meta) characters, and as such it is dangerous to blindly pass an argument in the <code>find</code> function above without pre-processing it to escape those characters. This is covered in the <a href="https://developer.mozilla.org/en-US/" rel="noreferrer">Mozilla Developer Network</a>'s <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#Using_Special_Characters" rel="noreferrer">JavaScript Guide on Regular Expressions</a>, where they present the following utility function:</p> <pre class="lang-js prettyprint-override"><code>function escapeRegExp(str) { return str.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1"); } </code></pre> <p>So in order to make the <code>replaceAll()</code> function above safer, it could be modified to the following if you also include <code>escapeRegExp</code>:</p> <pre class="lang-js prettyprint-override"><code>function replaceAll(str, find, replace) { return str.replace(new RegExp(escapeRegExp(find), 'g'), replace); } </code></pre>
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    1. POHow to replace all occurrences of a string in JavaScript?
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    1. USSean Bright
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    1. CORegular expressions are the only way to accomplish this "out of the box" without implementing your own 'replaceAll' method. I'm not suggesting their use just for the sake of using them.
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      1. USSean Bright
    2. COThis is my own function from this comment: `function replaceAll(find, replace,str) { var re = new RegExp(find, 'g'); str = str.replace(re, replace); return str; }`
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    3. COMajor caveat of of the `replaceAll` implementation is that it won't work if `find` contains metacharacters.
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      1. USMartin Ender
 

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