forked from perelman/contra-renderer
26 lines
613 B
JavaScript
26 lines
613 B
JavaScript
if (!Array.prototype.findIndex) {
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Array.prototype.findIndex = function(predicate) {
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"use strict"
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if (this == null) {
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throw new TypeError(
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"Array.prototype.findIndex called on null or undefined"
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)
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}
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if (typeof predicate !== "function") {
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throw new TypeError("predicate must be a function")
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}
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var list = Object(this)
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var length = list.length >>> 0
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var thisArg = arguments[1]
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var value
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for (var i = 0; i < length; i++) {
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value = list[i]
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if (predicate.call(thisArg, value, i, list)) {
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return i
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}
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}
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return -1
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}
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}
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