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Customizing Bootstrap CSS template
... <link rel="stylesheet/less" href="/path/to/bootstrap.less">
<script src="/path/to/less.js"></script>
To recompile the .less files, just save them and reload your page. Less.js compiles them and stores them in local storage.
Or if you prefer to statically compile a new ...
How can I check whether a option already exist in select by JQuery
..."#your_select_id option[value=<enter_value_here>]").length == 0 ){
alert("option doesn't exist!");
}
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What is the difference between String.slice and String.substring?
.... Too large values are truncated to the length of the string:
alert ( "testme" .substring (-2)); // "testme", -2 becomes 0
Furthermore, if start > end, the arguments are interchanged, i.e. plot line returns between the start and end:
alert ( "testme" .substring (4, -1)); // "test"
...
Formatting a number with exactly two decimals in JavaScript
...adays, you can use the Intl.NumberFormat constructor. It's part of the ECMAScript Internationalization API Specification (ECMA402). It has pretty good browser support, including even IE11, and it is fully supported in Node.js.
const formatter = new Intl.NumberFormat('en-US', {
minimumFraction...
How to initialize an array's length in JavaScript?
...}) gives you an array with length 5 and values 0,1,2,3,4.
Array(5).forEach(alert) does nothing, Array.apply(null, Array(5)).forEach(alert) gives you 5 alerts
ES6 gives us Array.from so now you can also use Array.from(Array(5)).forEach(alert)
If you want to initialize with a certain value, these are ...
Asynchronous Process inside a javascript for loop [duplicate]
...j = 10;
for (i = 0; i < j; i++) {
await asycronouseProcess();
alert(i);
}
Remember, this works only if asycronouseProcess is returning a Promise
If asycronouseProcess is not in your control then you can make it return a Promise by yourself like this
function asyncProcess() {
ret...
How to determine whether an object has a given property in JavaScript
...roperty, opts)) {
throw new Error("IllegalArgumentException");
}
alert("ok");
}
f({req1: 123}); // error
f({req1: 123, req2: 456}); // ok
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Pass parameters in setInterval function
...the "spread" operator
function repeater(param1, param2, param3){
alert(param1);
alert(param2);
alert(param3);
}
let input = [1,2,3];
setInterval(repeater,3000,...input);
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Convert object string to JSON
...n I convert a string that describes an object into a JSON string using JavaScript (or jQuery)?
20 Answers
...
How to bind Events on Ajax loaded Content?
...eated elements:
$(document).on("click", '.mylink', function(event) {
alert("new link clicked!");
});
This does actually work, here's an example where I appended an anchor with the class .mylink instead of data - http://jsfiddle.net/EFjzG/
...