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Closed 8 years ago.
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I want to use the value of a variable inside a array, like this.
var advalue = Math.floor(Math.random * 6);
var ads = ["Hello", "World", "Randomword", "123", "1233", "0000"];
API.sendChat("Word: " + ads[advalue]);
When i run this, i get undefined
There is a typo, missing brackets after random
var advalue = Math.floor(Math.random() * 6);
Related
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Closed 3 months ago.
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i want to replace all the "_" occurrences from an array like this (TASK_1,TASK_2,TASK_3).
I receive this from the back-end and i cannot use the replace all because the project doesn't support es2021. I need to display the array like this (TASK 1,TASK 2, TASK 3).
I tried this method:
formatWithoutUnderScore(valueToFormat:any) {
return valueToFormat.map((value:any) => value.replace(/_/g, ' '));
}
and the used it:
this.formatWithoutUnderScore(this.totalTasks);
But it does nothing :(
Can someone help?
this.totalTasks = this.formatWithoutUnderScore(this.totalTasks);
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Closed 1 year ago.
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This is my code but when i run this code in console always giving me Congratulations.
Help me for solve this problem.
var val=Math.floor(Math.random() * 10) + 1;
console.log(val);
var Predict = Number(prompt("Prediction ?"));
for(var i=1 ; i <= 3; i++){
if(Predict<val){console.log("Up")};
if(Predict=val){console.log("Congratulations") };
if(Predict>val){console.log("Down")}
}
Equal operator assigns the right hand to the left hand and so the result is always true! To compare two values use double equals like this:
if (Predict==val){console.log("Congratulations") };
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Closed 4 years ago.
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I'm a newbie in JavaScript, can someone explain to me why I'm getting NaN as output from this code?
var car = new Array("Honda", "Toyota", "BMW", "Merc");
var calc = 3 * car.legth;
alert(calc);
You should do 3 * car.length; as car is an array and it has length property to return the number of elements in the array.
var car = new Array("Honda", "Toyota", "BMW", "Merc");
var calc = 3 * car.length;
alert(calc);
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Closed 6 years ago.
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Below is my code, for some reason it outputs undefined for ['6'] & ['7'], all the other ones work. I don't understand what is going wrong.
var array = [
['1'],
['2'],
['3'],
['4'],
['5'],
['6']
['7'],
['8'],
['9'],
['10']
];
if(document.getElementById("random-element")) {
var rand = array[Math.floor(Math.random() * array.length)];
document.getElementById('random-element').innerHTML = rand;
}
https://jsfiddle.net/ggky7a03/
You missed a comma in your array, which will explain why those 2 values are not returning (they don't exist)
Side note, array is a reserved word in JS, so you can't (shouldn't) use it for your variable name, so change it to
var myAwesomeArray = [
// or similar
Here's your fixed code
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Closed 7 years ago.
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I've used this :
String.Prototype.left = function left(count){
return this.substr(0,count);
}
And apply it this way :
var string = "Hello Stack!";
console.log(string.left(5));
And the console tells me :
TypeError: example.left is not a function
console.log(example.left(5));
How can I fix it? And where is the problem?
String.prototype.left = function(index){
return this.substring(0,index);
}
var str = "Hello World";
console.log(str.left(5));