Warning: this doesn’t work for arrays of primitives (see the comments). Since java-8 you can now use Streams. To check whether an array of int, double or long contains a value use IntStream, DoubleStream or LongStream respectively. Example
Well, the $key => $value in the foreach loop refers to the key-value pairs in associative arrays, where the key serves as the index to determine the value instead of a number like 0,1,2,… In PHP, associative arrays look like this: In the PHP code: $featured is the associative array being looped through, and as … Read more
From the code you showed us, the only thing we can tell is that you are trying to create an array from a list that isn’t shaped like a multi-dimensional array. For example or will yield this error message, because the shape of the input list isn’t a (generalised) “box” that can be turned into … Read more
for arrays (which is what you want) or for single elements. But it’s more simple to use vector, or use smartpointers, then you don’t have to worry about memory management. L.data() gives you access to the int[] array buffer and you can L.resize() the vector later. L.get() gives you a pointer to the int[] array.
for arrays (which is what you want) or for single elements. But it’s more simple to use vector, or use smartpointers, then you don’t have to worry about memory management. L.data() gives you access to the int[] array buffer and you can L.resize() the vector later. L.get() gives you a pointer to the int[] array.
Modern browsers have Array#includes, which does exactly that and is widely supported by everyone except IE: Run code snippet You can also use Array#indexOf, which is less direct, but doesn’t require polyfills for outdated browsers. Run code snippet Many frameworks also offer similar methods: jQuery: $.inArray(value, array, [fromIndex]) Underscore.js: _.contains(array, value) (also aliased as _.include and _.includes) Dojo Toolkit: dojo.indexOf(array, value, [fromIndex, findLast]) Prototype: array.indexOf(value) MooTools: array.indexOf(value) MochiKit: findValue(array, value) MS … Read more
Find the index of the array element you want to remove using indexOf, and then remove that index with splice. The splice() method changes the contents of an array by removing existing elements and/or adding new elements. Run code snippet The second parameter of splice is the number of elements to remove. Note that splice modifies the array in place and returns a … Read more
Sort homes by price in ascending order: Or after ES6 version: Some documentation can be found here. For descending order, you may use
First, array_length should be an integer and not a string: Second, your for loop should be constructed using range: Third, i will increment automatically, so delete the following line: Note, one could also just zip the two lists given that they have the same length:
Use the Array.prototype.push method to append values to the end of an array: Run code snippet You can use the push() function to append more than one value to an array in a single call: Run code snippet Update If you want to add the items of one array to another array, you can use firstArray.concat(secondArray): Run code snippet Update … Read more