JavaScript substr_replace
Replaces part of a string with another string
1 2 3 4 56 7 8 9 1011 12 13 14 1516 17 18 19 2021 22 23 24 2526 27 28 | function substr_replace (str, replace, start, length) { // Replaces part of a string with another string // // version: 909.322 // discuss at: http://phpjs.org/functions/substr_replace // + original by: Brett Zamir (http://brett-zamir.me) // * example 1: substr_replace('ABCDEFGH:/MNRPQR/', 'bob', 0); // * returns 1: 'bob' // * example 2: $var = 'ABCDEFGH:/MNRPQR/'; // * example 2: substr_replace($var, 'bob', 0, $var.length); // * returns 2: 'bob' // * example 3: substr_replace('ABCDEFGH:/MNRPQR/', 'bob', 0, 0); // * returns 3: 'bobABCDEFGH:/MNRPQR/' // * example 4: substr_replace('ABCDEFGH:/MNRPQR/', 'bob', 10, -1); // * returns 4: 'ABCDEFGH:/bob/' // * example 5: substr_replace('ABCDEFGH:/MNRPQR/', 'bob', -7, -1); // * returns 5: 'ABCDEFGH:/bob/' // * example 6: 'substr_replace('ABCDEFGH:/MNRPQR/', '', 10, -1)' // * returns 6: 'ABCDEFGH://' if (start < 0) { // start position in str start = start + str.length; } length = length !== undefined ? length : str.length; if (length < 0) { length = length + str.length - start; } return str.slice(0, start)+replace.substr(0, length)+replace.slice(length)+str.slice(start+length); } |
Examples
» Example 1
Running
1 | substr_replace('ABCDEFGH:/MNRPQR/', 'bob', 0); |
Should return
1 | 'bob' |
» Example 2
Running
1 2 | $var = 'ABCDEFGH:/MNRPQR/'; substr_replace($var, 'bob', 0, $var.length); |
Should return
1 | 'bob' |
Dependencies
No dependencies, you can use this function standalone.
Open syntax issues
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Authors
Thanks to the following developers, you get to have substr_replace goodness in JavaScript.
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